avoid_catches_without_on_clauses

Avoid catches without on clauses.

This rule is available as of Dart 2.0.0.

AVOID catches without on clauses.

Using catch clauses without on clauses make your code prone to encountering unexpected errors that won't be thrown (and thus will go unnoticed).

BAD:

try {
 somethingRisky()
}
catch(e) {
  doSomething(e);
}

GOOD:

try {
 somethingRisky()
}
on Exception catch(e) {
  doSomething(e);
}

To enable the avoid_catches_without_on_clauses rule, add avoid_catches_without_on_clauses under linter > rules in your analysis_options.yaml file:

linter:
  rules:
    - avoid_catches_without_on_clauses